JPH0334876Y2 - - Google Patents
Info
- Publication number
- JPH0334876Y2 JPH0334876Y2 JP1984077892U JP7789284U JPH0334876Y2 JP H0334876 Y2 JPH0334876 Y2 JP H0334876Y2 JP 1984077892 U JP1984077892 U JP 1984077892U JP 7789284 U JP7789284 U JP 7789284U JP H0334876 Y2 JPH0334876 Y2 JP H0334876Y2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- ballast
- capacitor
- coil
- intermediate tap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 claims description 21
- 241000283973 Oryctolagus cuniculus Species 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は放電灯点灯装置、特に40Wの蛍光ラ
ンプの２灯を直列点灯する、ラビツトスタート型
式の放電灯点灯装置に関する。[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a discharge lamp lighting device, particularly a rabbit start type discharge lamp lighting device that lights two 40W fluorescent lamps in series.
（従来の技術）
この種放電灯点灯装置において、１次コイルを
商用交流電源に接続し、２次コイルを前記１次コ
イルに直列に接続した漏洩トランスからなる安定
器を用いた構成はよく知られている。この種漏洩
トランスは、鉄心中央脚にブリツジギヤツプを設
けた構成としている。これはランプ電圧が台形波
に近づくように、高調波電圧をより多く発生させ
るためであり、このようにランプ電圧が台形波に
近づけ近づく程安定器並びに進相用コンデンサの
小型化が可能となる。(Prior Art) In this type of discharge lamp lighting device, a configuration using a ballast consisting of a leakage transformer in which a primary coil is connected to a commercial AC power source and a secondary coil is connected in series with the primary coil is well known. It is being This type of leakage transformer has a structure in which a bridge gap is provided in the center leg of the iron core. This is to generate more harmonic voltage so that the lamp voltage approaches a trapezoidal wave, and the closer the lamp voltage approaches a trapezoidal wave, the more compact the ballast and phase advance capacitor can be. .
しかしランプ電圧を台形波に近づけるためにブ
リツジギヤツプを大きくして高調波の発生量を増
していくと、点灯時特に低温状態における点灯時
にランプがちらつく傾向がある。そのためブリツ
ジギヤツプを大きくすることによる安定器、進相
用コンデンサの小型化には限度があるものとされ
ていた。 However, if the bridge gap is increased to increase the amount of harmonics generated in order to bring the lamp voltage closer to a trapezoidal wave, the lamp tends to flicker when lit, especially when lit in low temperature conditions. For this reason, it was believed that there was a limit to the miniaturization of ballasts and phase advance capacitors by increasing the bridge gap.
（問題点を解決するための手段）
この考案はブリツジギヤツプを大きくすること
なく、安定器、進相用コンデンサの小型化を図る
ことを目的とする。(Means for solving the problem) The purpose of this invention is to reduce the size of the ballast and phase advance capacitor without increasing the bridge gap.
（考案が解決しようとする問題点）
この考案は漏洩トランスの１次コイルのうち
の、70V以上100V未満の電圧を発生する個所に
中間タツプを設け、この中間タツプに２次コイル
を接続したことを特徴とする。(Problem that the invention aims to solve) This invention provides an intermediate tap in the primary coil of the leakage transformer at a point where a voltage of 70V or more and less than 100V is generated, and connects the secondary coil to this intermediate tap. It is characterized by
（作用）
このように接続しておくと、点灯時において
は、１次コイルにおける中間タツプの電圧と、２
次コイルとが加わつた部分の電圧とを加えた電圧
は、従来のように１次、２次両コイルを直列接続
した場合の両コイルの電圧の加算電圧よりも、ラ
ンプ電圧が同じであつても低くくなる。これによ
り漏洩トランス及び進相コンデンサに加わる電圧
はいずれも低くくなる。したがつて漏洩トランス
としてボルトアンペアを小さくすることができる
し、又進相用コンデンサとして耐圧の小さいもの
が使用できることになる。(Function) With this connection, when lighting, the voltage at the intermediate tap in the primary coil and the voltage at the
The voltage added to the voltage at the part where the primary and secondary coils are connected is the same as the lamp voltage, and the voltage added to the voltage at the part where the primary and secondary coils are connected is the same as the lamp voltage. will also be lower. This reduces the voltages applied to both the leakage transformer and the phase advance capacitor. Therefore, the volt-ampere required for the leakage transformer can be reduced, and a capacitor with a low withstand voltage can be used as the phase advance capacitor.
（実施例）
この考案の実施例を図によつて説明する。第１
図において、１は商用交流電源、２は漏洩トラン
スからなる安定器で、第２図にその断面を示すよ
うに日字型の鉄心３と、この中央脚４に巻装され
た１次コイル５及び２次コイル６とから構成され
てある。７は中央脚４に形成されたブリツジギヤ
ツプである。８は進相用のコンデンサ、９はその
放電抵抗、１０Ａ，１０Ｂは40Wの放電灯、１１
はフイラメント予熱用のコイル（第２図では省略
してある。）、１２は雑音防止用のコンデンサ、１
３は逐次点灯用のコンデンサである。(Example) An example of this invention will be described with reference to the drawings. 1st
In the figure, 1 is a commercial AC power supply, 2 is a ballast consisting of a leakage transformer, and as shown in the cross section of FIG. and a secondary coil 6. 7 is a bridge gap formed on the central leg 4. 8 is a capacitor for phase advance, 9 is its discharge resistance, 10A, 10B is a 40W discharge lamp, 11
1 is a coil for preheating the filament (omitted in Figure 2); 12 is a capacitor for noise prevention;
3 is a capacitor for sequential lighting.
両放電灯１０Ａ，１０Ｂは直列に接続され、安
定器２の２次電圧が、コンデンサ８と放電抵抗９
との並列回路を介して印加される。コンデンサ１
２は両放電灯の直列回路の両端に接続されてあ
り、又コンデンサ１３は一方の放電灯に並列に接
続されてある。 Both discharge lamps 10A and 10B are connected in series, and the secondary voltage of the ballast 2 is connected to the capacitor 8 and the discharge resistor 9.
is applied through a parallel circuit with capacitor 1
2 are connected to both ends of a series circuit of both discharge lamps, and a capacitor 13 is connected in parallel to one of the discharge lamps.
以上の構成は通常のこの種点灯装置と特に相違
するところはなく、安定器２の無負荷２次電圧
300Vがコンデンサ１３を介して放電灯１０Ａに
印加され、これによつて放電灯１０Ａは放電を開
始する。この放電の開始にともなつて放電灯１０
Ａのインピーダンスが低下するので、安定器２の
２次電圧は次に放電灯１０Ａを介して放電灯１０
Ｂに印加される。この印加によつて放電灯１０Ｂ
が放電を開始する。この両放電灯の放電の開始に
よつて両放電灯は同時にともに瞬時点灯する。以
上の動作はラビツトスタート型式の動作としてす
でによく知られているとこである。 The above configuration is not particularly different from a normal lighting device of this type, and the no-load secondary voltage of the ballast 2
300V is applied to the discharge lamp 10A via the capacitor 13, thereby causing the discharge lamp 10A to start discharging. With the start of this discharge, the discharge lamp 10
Since the impedance of A decreases, the secondary voltage of the ballast 2 then passes through the discharge lamp 10A to the discharge lamp 10.
applied to B. By this application, the discharge lamp 10B
starts discharging. As a result of the start of discharge of both discharge lamps, both discharge lamps are instantaneously lit at the same time. The above operation is already well known as rabbit start type operation.
この考案にしたがい安定器２の１次コイル５に
中間タツプ１５を設け、これに２次コイル６を接
続した単巻トランス型式とする。１次コイル５の
両端には商用交流電源１が接続されるし、又１次
コイル５の端部ａと中間タツプ１５との間の電圧
（これをVE1とする）と、中間タツプ１５と２次
コイル６の端部との間の電圧（これをVE2とす
る。）との和の電圧が安定器２の２次電圧となる。 According to this idea, an intermediate tap 15 is provided on the primary coil 5 of the ballast 2, and a secondary coil 6 is connected to this to form a single-turn transformer type. The commercial AC power supply 1 is connected to both ends of the primary coil 5, and the voltage between the end a of the primary coil 5 and the intermediate tap 15 (this is referred to as VE 1 ) and the voltage between the intermediate tap 15 and the primary coil 5 are connected to each other. The voltage that is the sum of the voltage between the secondary coil 6 and the end of the secondary coil 6 (this is referred to as VE 2 ) becomes the secondary voltage of the ballast 2 .
以上の構成において両放電灯の点灯状態におい
ての各部の電圧の大きさを検討する。今放電灯１
０Ａ，１０Ｂの直列回路の両端の電圧すなわち放
電灯２灯分のランプ電圧2VL185Vを一定とし、
及び無負荷２次電圧V2が常に300Vとなるように
安定器の各コイルの巻数を定めるものとする。更
に商用交流電源１の電圧を100Vとする。ここで
中間タツプ１５を１次コイル５の80Vの個所から
引出したとき（したがつてVE1＝80V）の、端部
ab間の電圧Vabは、安定器２のインダクタンス分
による電圧降下分をVchとすれば、VE1＋VE2＋
Vch、又中間タツプ１５と端部ｂとの間の電圧
は、VE2＋Vch（ただし端部ａと中間タツプ１５と
の間のインダクタンス分による電圧降下分を無視
する。）であり、これらを実測した結果からベク
トル図を画くと第３図Ａのようになる。ただしコ
ンデンサ８の端子電圧Vc．コンデンサ８と安定
器２との直列回路の両端の電圧、すなわちコンデ
ンサ８の端子電圧と電圧Vchとの和の電圧VBをそ
れぞれ実測した。このときの各電圧は次のとおり
であつた。 In the above configuration, the magnitude of voltage at each part when both discharge lamps are lit will be examined. now discharge lamp 1
The voltage across the series circuit of 0A and 10B, that is, the lamp voltage of two discharge lamps, 2VL185V, is constant.
The number of turns of each coil of the ballast shall be determined so that the no-load secondary voltage V 2 is always 300V. Furthermore, the voltage of commercial AC power supply 1 is set to 100V. Here, when the intermediate tap 15 is pulled out from the 80V point of the primary coil 5 (therefore, VE 1 = 80V), the end
The voltage between ab and V ab is VE 1 + VE 2 + where V ch is the voltage drop due to the inductance of stabilizer 2.
V ch and the voltage between the intermediate tap 15 and the end b are VE 2 +V ch (ignoring the voltage drop due to the inductance between the end a and the intermediate tap 15). A vector diagram drawn from the actual measurement results is shown in Figure 3A. However, the terminal voltage of capacitor 8 V c . The voltage across the series circuit of the capacitor 8 and the ballast 2, that is, the voltage V B , which is the sum of the terminal voltage of the capacitor 8 and the voltage V ch , was actually measured. The voltages at this time were as follows.
VE1＝80V，VE2＋Vch＝230V
VE1＋VE2＋Vch＝280V
Vc＝200V
これらの実測に基いて画いたベクトル図第３図
Ａから
VE2＝150V，Vch＝190V
したがつて VE1＋VE2＝185V
が求められた。 VE 1 = 80V, VE 2 +V ch = 230V VE 1 +VE 2 +V ch = 280V V c = 200V From the vector diagram Figure 3A drawn based on these measurements, VE 2 = 150V, V ch = 190V Therefore, VE 1 + VE 2 = 185V was determined.
これに対し従来のように２次コイル６を１次コ
イル５の全部に直列接続した構成（この考案のよ
うに中間タツプ１５を設けていない場合、したが
つてVE1＝100Vとする。）のとき、無負荷２次電
圧、ランプ電圧を同じとすればそのときの各実測
値からベクトル図を画くと第３図Ｃのようにな
る。同図では
VE2＋Vch＝250V
VE1＋VE2＋Vch＝300V
Vc＝215V
したがつて
VE2＝95V，Vch＝190V
したがつて VE1＋VE2＝195V
第３図Ａと比較した場合、第３図Ａの場合の方
が電圧Vc並びにVE1＋VE2が小さくなつている。
この結果から中間タツプ１５を設け、これに２次
コイルを接続した構成では、中間タツプを設けな
いで、１次、２次両コイルを直列接続した構成よ
りも、コンデンサ８として耐圧の小さいものが使
用できるようになり、又安定器２としてボルトア
ンペアを小さく設計することができるようにな
る。 On the other hand, in the conventional configuration in which the secondary coil 6 is connected in series with all of the primary coils 5 (if the intermediate tap 15 is not provided as in this invention, VE 1 = 100V). If the no-load secondary voltage and lamp voltage are the same, a vector diagram drawn from each actual measurement value at that time will be as shown in Figure 3C. In the figure, VE 2 +V ch = 250V VE 1 +VE 2 +V ch = 300V V c = 215V Therefore, VE 2 = 95V, V ch = 190V Therefore, VE 1 + VE 2 = 195V When compared with Figure 3 A , the voltage V c and VE 1 +VE 2 are smaller in the case of FIG. 3A.
From this result, in the configuration in which the intermediate tap 15 is provided and the secondary coil is connected to it, the capacitor 8 has a lower withstand voltage than the configuration in which both the primary and secondary coils are connected in series without providing an intermediate tap. In addition, the ballast 2 can be designed with a small volt-ampere.
中間タツプ１５の位置を60Vの位置とした場合
は
VE1＝60V，VE2＋Vch＝230V
VE1＋VE2＋Vch＝290V
Vc＝190V
であり、
VE2＝127V，Vch＝200V
したがつて VE1＋VE2＝187V
であり、これからベクトル図を画くと第３図Ｂの
ようになつた。この結果からこのベクトル図から
理解できるように点灯回路が誘導性となつてしま
うし、電圧Vchも高くなり、安定器２が大型化す
るので都合が悪い。したがつて中間タツプ１５の
位置は70Vまでが限度である。或いは第３図から
して電圧Vchが電圧Vcにほぼ等しくなるところま
でが限度であるとも言える。 When the intermediate tap 15 is set to the 60V position, VE 1 = 60V, VE 2 +V ch = 230V VE 1 +VE 2 +V ch = 290V V c = 190V, and VE 2 = 127V, V ch = 200V. Therefore, VE 1 + VE 2 = 187V, and if we draw a vector diagram from this, it will look like Figure 3 B. From this result, as can be understood from this vector diagram, the lighting circuit becomes inductive, the voltage V ch also increases, and the ballast 2 becomes larger, which is inconvenient. Therefore, the position of the intermediate tap 15 is limited to 70V. Alternatively, from FIG. 3, it can be said that the limit is the point where voltage V ch becomes approximately equal to voltage V c .
なお以上の説明は商用交流電源１の電圧を
100Vとした場合についてであつたが、これが別
の電圧たとえば200Vであつても同様の結果が導
かれる。 The above explanation assumes that the voltage of commercial AC power supply 1 is
Although we have discussed the case of 100V, similar results can be obtained even if this is a different voltage, for example 200V.
（考案の効果）
以上詳述したようにこの考案によれば、進相用
コンデンサとして耐圧の小さいものでも使用でき
るし、又安定器の低ボルトアンペア化が可能とな
るといつた効果を奏する。(Effects of the invention) As detailed above, according to this invention, even a capacitor with a low withstand voltage can be used as a phase advance capacitor, and furthermore, it is possible to use a low volt-ampere stabilizer.
第１図はこの考案の実施例を示す回路図、第２
図は安定器の断面図、第３図は動作説明用のベク
トル図である。
１……商用交流電源、２……安定器、３……鉄
心、５……１次コイル、６……２次コイル、７…
…ブリツジギヤツプ、８……進相用コンデンサ、
１０Ａ，１０Ｂ……放電灯、１５……中間タツ
プ。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
The figure is a sectional view of the ballast, and FIG. 3 is a vector diagram for explaining the operation. 1... Commercial AC power supply, 2... Ballast, 3... Iron core, 5... Primary coil, 6... Secondary coil, 7...
...bridge gap, 8...phase advancement capacitor,
10A, 10B...Discharge lamp, 15...Intermediate tap.
Claims (1)
次コイルを設けてなる安定器と、前記安定器の出
力電圧が、進相用コンデンサを介して印加され
る、40W放電灯２灯を直列接続した回路とからな
るラビツトスタート型式の放電灯点灯装置におい
て、点灯用電源が接続される前記安定器の１次コ
イル中、その１次コイルの70V以上100V未満の
電圧を発生している位置に中間タツプを設け、前
記中間タツプを介して前記２次コイルを前記１次
コイルに対して直列接続してなる放電灯点灯装
置。 The primary and secondary
Rabbit start type discharge lamp lighting consisting of a ballast provided with a second coil, and a circuit in which two 40W discharge lamps are connected in series, to which the output voltage of the ballast is applied via a phase advance capacitor. In the device, an intermediate tap is provided in the primary coil of the ballast to which the lighting power source is connected, at a position where the primary coil generates a voltage of 70 V or more and less than 100 V, and the secondary tap is connected to the ballast through the intermediate tap. A discharge lamp lighting device comprising a secondary coil connected in series to the primary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7789284U JPS60189998U (en) | 1984-05-25 | 1984-05-25 | discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7789284U JPS60189998U (en) | 1984-05-25 | 1984-05-25 | discharge lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60189998U JPS60189998U (en) | 1985-12-16 |
| JPH0334876Y2 true JPH0334876Y2 (en) | 1991-07-24 |
Family
ID=30621373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7789284U Granted JPS60189998U (en) | 1984-05-25 | 1984-05-25 | discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189998U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139368B2 (en) * | 1971-10-20 | 1976-10-27 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139368U (en) * | 1974-09-19 | 1976-03-24 |
-
1984
- 1984-05-25 JP JP7789284U patent/JPS60189998U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139368B2 (en) * | 1971-10-20 | 1976-10-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60189998U (en) | 1985-12-16 |
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